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All Journal JURNAL DERIVAT: JURNAL MATEMATIKA DAN PENDIDIKAN MATEMATIKA Math Didactic: Jurnal Pendidikan Matematika Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Teknovasi : Jurnal Teknik dan Inovasi Mesin Otomotif, Komputer, Industri dan Elektronika Machine : Jurnal Teknik Mesin SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Majalah Ilmiah Bahari Jogja Dedication : Jurnal Pengabdian Masyarakat Meteor STIP Marunda Abdimas UNWAHAS : Jurnal Pengabdian Masyarakat UNWAHAS Journal of Applied Engineering and Technological Science (JAETS) JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Jurnal Sains Teknologi Transportasi Maritim Dinamika Bahari: Journal of Maritime Dynamic Ethical Lingua: Journal of Language Teaching and Literature Journal of Community Service and Empowerment Majalah Ilmiah Gema Maritim Saintara : Jurnal Ilmiah Ilmu-Ilmu Maritim International Journal of Community Service JURNAL BARUNA HORIZON Jurnal Pengabdian Kepada Masyarakat JES-MAT (Jurnal Edukasi dan Sains Matematika) Educate: Journal of Community Service in Education Jurnal Sains dan Teknologi PROGRESIF Jurnal Maritim Polimarin JURNAL SAINS DAN TEKNOLOGI MARITIM Jurnal Ilmiah Kemaritiman Nusantara Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya International Journal of Community Service (IJCS) Journal of Applied Mechanical Engineering and Renewable Energy (JAMERE) Literasi: Jurnal Pengabdian Masyarakat dan Inovasi TRIMAS: Jurnal Inovasi dan Pengabdian Kepada Masyarakat Dedication : Jurnal Pengabdian Masyarakat Jurnal Edukasi Pengabdian Masyarakat: EDUABDIMAS Jurnal Pengabdian Masyarakat dan aplikasi Teknologi Al Mu'azarah: Jurnal Pengadian kepada Masyarakat Jurnal Polimesin Malik Al-Shalih International Journal of Technology and Education Research International Journal of Economics, Business and Innovation Research Asian Journal of Management, Entrepreneurship and Social Science Journal of Transportation and Society Empowerment Brilliant International Journal of Management and Tourism Jurnal Riset dan Inovasi Manajemen
Ningrum Astriawati
Sekolah Tinggi Maritim Yogyakarta, Indonesia
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Pengaruh Kualitas Pelayanan Dan Promosi Penjualan Terhadap Volume Penjualan Suretybond PT. Parolamas Cabang Jayapura Slamet Pamujianto; Ningrum Astriawati; Handoyo Widyanto; Fatrodin Fatrodin; Sumardi Sumardi
Jurnal Riset dan Inovasi Manajemen Vol. 1 No. 4 (2023): November: Jurnal Riset dan Inovasi Manajemen
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jrim-widyakarya.v1i4.1458

Abstract

Surety bond insurance issuance services are an important sector in the construction and service industry, because they involve insurance institutions on the quality and success of projects to clients. This study aims to determine the effect of service quality and sales promotion on Suretybond sales volume at PT. Parolamas Jayapura branch quality of service and sales promotion to the sales volume of suretybond PT. Parolamas Jayapura branch. The sample taken in this study was 100 respondents with random sample. The data analysis technique in this study uses multiple linear regression analysis with simultaneous regression test (F-test) and partial regression test (t-test). The results showed that there was a positive influence of service quality and sales promotion on the sales volume of suretybond PT. Parolamas Jayapura Branch. Quality of service and promotion is able to explain Sales volume by 81.1%, while for 18.9% sales volume is influenced by variables other than service quality and sales Promotion.
The Effect of Quenching With Oil on Annealing Temperature Variations on The Hardness Of ST 37 Equivalent Steel Muh Anhar; Yusuf Yusuf; Irianto SP; Ningrum Astriawati
Journal of Applied Engineering and Technological Science (JAETS) Vol. 7 No. 2 (2026): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/jaets.v7i2.10558

Abstract

ST37 equivalent steel is widely used in engineering applications due to its high ductility; however, its relatively low hardness limits its performance in wear-related components. This study investigates the effect of annealing temperature variations and different oil quenching media on the hardness of ST37 equivalent steel. Specimens were annealed at 750°C, 850°C, and 950°C with a holding time of 10 minutes, followed by quenching in three types of oil: SAE 15W-40 mineral oil, SAE 10W-40 semi-synthetic oil, and SAE 10W-40 fully synthetic oil. Hardness measurements were conducted using the Rockwell B scale (HRB) at five different points on each specimen. The results indicate a consistent increase in hardness with increasing annealing temperature for all quenching media. The highest hardness value, 43.4 HRB, was obtained at 950°C using fully synthetic oil, representing an improvement of approximately 4.58% compared to the untreated material. Among the tested media, fully synthetic oil exhibited the most effective cooling performance. These findings demonstrate that both annealing temperature and oil type significantly influence the hardness characteristics of ST37 equivalent steel.
Co-Authors Ade Chandra Kusuma Adi Dewanto Agusta, Gino Erman Alan Audi Ambar Muslim Andi Hendrawan Andi Hendrawan Andriyan Adi Pratama Anugrah, Kelvi Arneta Fitri Kirana Asmul Khairi Barokah Baskoro, Romi Bellin Fattah Bellin Fattah Benny Hartanto Budi Handojo Cahya Purnomo Cahya Purnomo, Cahya Damar Kuncoro Yekti dekanawati, vivid Didik Sisdiyanto Ekorius, Yunus Erman Agusta, Gino Fatchul Arifin Fatrodin Fatrodin Fatrodin Fatrodin Fernando, Antonius Fikri Fikri Ganda Syahputra Gino Erman Agusta Gino Erman Agusta Gino Erman Agusta Handoyo Widyanto Haryani ILHAM PRATAMA PUTRA Imanuel Agung Prasojo Ireneus Bertho Irianto SP Iswanto Iswanto Iswanto Iswanto Joko Subekti Kristian Cahyandi Kumila Hanik Kusuma, Arif Agus Budiawan Lukas Kristianto M. Satriawan Maha Sari, Ardystia Margo Siswo Milad, Abdurahman Muh Anhar Muhammad Hamzah Fadholy Nanang Kristiawan Nanda Kevin Hamzah Alfanzuri Nuriil Tardesi, Risnaliyah Pamujianto, Slamet Pantja Siwi VR Ingesti Paulus Suhardi Waluyo Pertiwi, Yudhanita Prasetya Sigit Santosa Pratama, Himawan Aditya Pratama, Wegig Pratiwi Pratiwi Primagani, Angga Purwantono Purwantono Ratna Sari, Dwiani Ruwinta Wahyudiyana Sahudiyono . Salim Salim Salim Salim, Salim Salmiya Nur Alfathia Artanti Sari, Ardystia Maha Setiawan, Dandi Alan Sri Sartini Subekti, Joko Suganjar, Suganjar Suganjar, Suganjar Suharyono, Suharyono Sumardi . Sumardi Sumardi Sumardi Sumardi Supartini Supartini Supartini Supartini Suyanti Suyanti Suyanti Thomas Wahyu Bagaskoro Waris Wibowo Wegig Pratama Wegig Pratama Yudhi Setiyantara Yudhi Setiyantara Setiyantara Yusmario Setiadi Yusuf Yusuf Zuhroh, Ulfa